My batch of fry are about 4 weeks old and are finally fish instead of tadpoles. I was wondering if I could get them to accept frozen food.

Lately I've been freezing the leftover bbs and what I wanted to try doing was mix some live bbs with frozen bbs (after being thawed of course) and get them use to eating frozen food. Will this work or are they too young?

If anyone got a better/proven method or any tip, I would greatly appreciate your help.

I don't even thaw it. I just plop the entire cube into the tank and let them eat it as it thaws. They seem to love playing with the cube. But if you only have a few fry you may want to cut it in half instead of using the entire thing.